1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fgiga [73]
3 years ago
12

Double standard refers to

Chemistry
1 answer:
Irina18 [472]3 years ago
3 0
A rule or principle that is unfairly applied in different ways to different people or groups
You might be interested in
What allowed Mendeleev to make predictions of undiscovered elements
Andrej [43]

Answer:

he predicted the properties from known elements above and belws the unknown in the same group

Explanation:

What allowed Mendeleev to make predictions of undiscovered elements

He realized that an element on this table with one known element above it and one known  element below it had to have properties between the two known elements

How did Mendeleev predict gallium and germanium?

Based on gaps in the periodic table Mendeleev deduced that in these gaps belonged elements yet to be discovered. Based on other elements below and above in the same group he predicted the existence of eka-aluminum, eka-boron, and eka-silicon, later to be named gallium (Ga), scandium (Sc), and germanium (Ge).

3 0
2 years ago
Read 2 more answers
A process used to gain knowledge through observation and investigation is?
Shkiper50 [21]

Answer:matter

Explanation:

matter

make brain

5 0
3 years ago
What is the mass in milligrams of 4.30 moles of sodium?use âeâ for âÃ10" and use significant figures?
Elis [28]

First, calculate the mass of sodium in g with the help of molar mass and number of moles.

Number of moles = \frac{given mass in g}{molar mass}   (1)

Molar mass of sodium =23 .0 g/mol

Substitute the given value of number of moles and molar mass of sodium in formula (1)

4.30 moles = \frac{given mass in g}{23.0 g/mol}   (1)

4.30 moles\times 23.0 g/mol = mass in g   (1)

mass of sodium in g = 98.9 g

Now, according to conversion factor, 1 g = 1000 mg

So, 98.9 g of sodium = 98.9 \times 1000  mg

= 98900 mg of sodium

Thus, mass of sodium in mg  =9.89 \times 10^{4} mg






8 0
3 years ago
What is avogrados number and why is it useful
gtnhenbr [62]

Answer:

Avogadro's number is 6.022×1023 molecules. With Avogadro's number, scientists can discuss and compare very large numbers, which is useful because substances in everyday quantities contain very large numbers of atoms and molecules.

please mark Brainliest if it helps!

7 0
2 years ago
A student performs an experiment to find the percentage of water in a hydrate. He determines that the hydrate contains 22% water
Stels [109]

Answer:

A feasible error could have been the removal of the sample before all water evaporated.

Explanation:

In order to determine the percentage of water in an hydrate, an experiment that could be performed is the heating of the sample until the mass does not change. If the student heated the sample an insufficient amount of time, water will be present in the sample, thus reducing the percentage reported.

4 0
3 years ago
Other questions:
  • Write the formula of the following ionic compounds us
    9·1 answer
  • Please answer as many as you can I need the help
    5·1 answer
  • How does a solution differ from a heterogeneous mixture?
    11·1 answer
  • The medicinal thermometer commonly used in homes can be read to ±0.1°F, whereas those in the doctor's office may be accurate t
    6·1 answer
  • Disorder of the particles of a liquid decreases the freezing point. True or false
    6·1 answer
  • If you lose half of your mass, its gravity will.. causing the tides to ..
    13·1 answer
  • Definition empirical evidence
    14·2 answers
  • I have to get this done fast
    6·1 answer
  • How many moles are in 16 grams of nitrogen molecule
    6·1 answer
  • Draw every stereoisomer for 1,2‑difluoro‑1,2‑dimethylcyclopentane. Use wedge‑and‑dash bonds for the substituent groups, and be s
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!